ASTM B636-1984(2010) 螺旋收缩仪测量电镀金属镀层内应力的标准试验方法
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【英文标准名称】:StandardTestMethodforMeasurementofInternalStressofPlatedMetallicCoatingswiththeSpiralContractometer
【原文标准名称】:螺旋收缩仪测量电镀金属镀层内应力的标准试验方法
【标准号】:ASTMB636-1984(2010)
【标准状态】:现行
【国别】:
【发布日期】:1984
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:B08.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:internalstresstest;metallicdeposit;Electroplatedcoatings;Internalstress;Ironproducts(general)--electrodepositedcoatings;Metalliccoatings;Spiralcontractometer;Steel--electrodepositedcoatings;Stress--metallicmaterials;Stresscracking
【摘要】:Thespiralcontractometer,properlyused,willgivereproducibleresults(see8.5)overawiderangeofstressvalues.Internalstresslimitswiththismethodcanbespecifiedforusebyboththepurchaserandtheproducerofplatedorelectroformedparts.Platingwithlargetensilestresseswillreducethefatiguestrengthofaproductmadefromhigh-strengthsteel.Maximumstresslimitscanbespecifiedtominimizethis.Otherpropertiesaffectedbystressincludecorrosionresistance,dimensionalstability,cracking,andpeeling.Incontrolofelectroformingsolutions,theeffectsofstressaremorewidelyrecognized,andthecontrolofstressisusuallynecessarytoobtainausableelectroform.Internalstresslimitscanbedeterminedandspecifiedforproductioncontrol.Internalstressvaluesobtainedbythespiralcontractometerdonotnecessarilyreflecttheinternalstressvaluesfoundonapartplatedinthesamesolution.Internalstressvarieswithmanyfactors,suchascoatingthickness,preparationofsubstrate,currentdensity,andtemperature,aswellasthesolutioncomposition.Closercorrelationisachievedwhenthetestconditionsmatchthoseusedtocoatthepart.1.1Thistestmethodcoverstheuseofthespiralcontractometerformeasuringtheinternalstressofmetalliccoatingsasproducedfromplatingsolutionsonahelicalcathode.Thetestmethodcanbeusedwithelectrolyticandautocatalyticdeposits.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:4P.;A4
【正文语种】:
【原文标准名称】:螺旋收缩仪测量电镀金属镀层内应力的标准试验方法
【标准号】:ASTMB636-1984(2010)
【标准状态】:现行
【国别】:
【发布日期】:1984
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:B08.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:internalstresstest;metallicdeposit;Electroplatedcoatings;Internalstress;Ironproducts(general)--electrodepositedcoatings;Metalliccoatings;Spiralcontractometer;Steel--electrodepositedcoatings;Stress--metallicmaterials;Stresscracking
【摘要】:Thespiralcontractometer,properlyused,willgivereproducibleresults(see8.5)overawiderangeofstressvalues.Internalstresslimitswiththismethodcanbespecifiedforusebyboththepurchaserandtheproducerofplatedorelectroformedparts.Platingwithlargetensilestresseswillreducethefatiguestrengthofaproductmadefromhigh-strengthsteel.Maximumstresslimitscanbespecifiedtominimizethis.Otherpropertiesaffectedbystressincludecorrosionresistance,dimensionalstability,cracking,andpeeling.Incontrolofelectroformingsolutions,theeffectsofstressaremorewidelyrecognized,andthecontrolofstressisusuallynecessarytoobtainausableelectroform.Internalstresslimitscanbedeterminedandspecifiedforproductioncontrol.Internalstressvaluesobtainedbythespiralcontractometerdonotnecessarilyreflecttheinternalstressvaluesfoundonapartplatedinthesamesolution.Internalstressvarieswithmanyfactors,suchascoatingthickness,preparationofsubstrate,currentdensity,andtemperature,aswellasthesolutioncomposition.Closercorrelationisachievedwhenthetestconditionsmatchthoseusedtocoatthepart.1.1Thistestmethodcoverstheuseofthespiralcontractometerformeasuringtheinternalstressofmetalliccoatingsasproducedfromplatingsolutionsonahelicalcathode.Thetestmethodcanbeusedwithelectrolyticandautocatalyticdeposits.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:4P.;A4
【正文语种】:
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